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Rom4ik [11]
4 years ago
13

Solve this, thanks!

exFormula1" title=" {4}^{2} ( {5}^{2x} ) = 10" alt=" {4}^{2} ( {5}^{2x} ) = 10" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
icang [17]4 years ago
7 0

Answer:   \bold{x=\dfrac{1-log_5(8)}{2}}

<u>Step-by-step explanation:</u>

4^2\cdot 5^{2x}=10\\\\\\\text{divide both sides by }4^2=16:\\5^{2x}=\dfrac{10}{16}\\\\\\\text{reduce the fraction:}\\5^{2x}=\dfrac{5}{8}\\\\\\\text{apply }log_5\text{ to both sides:}\\ log_5(5)^{2x}=log_5\bigg(\dfrac{5}{8}\bigg)\\\\\\\text{cancel out }log_5(5):\\2x=log_5\bigg(\dfrac{5}{8}\bigg)\\\\\\\text{Apply the division rule for logs:}\\2x=log_5(5)-log_5(8)\\\\\\\text{Simplify }log_5(5)=1:\\2x=1-log_5(8)

\text{Divide 2 from both sides to solve for x:}\\\\x=\dfrac{1-log_5(8)}{2}

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Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).
Elan Coil [88]

Answer:

(40/3)*pi

Step-by-step explanation:

lets first find the area of the little circle

A=pi*r^2

A=pi*3^2

A=9pi

Now, lets find the area of the big circle

A=pi*r^2

A=pi*(3+4)^2

A=pi*7^2

A=49pi

now lets subtract the area of the little circle from the area of the big circle

49pi-9pi=40pi, now we found the area of the "bagel)

lets find what portion of the bagel is the shaded region

120/360=1/3

now lets multiply the bagel area by the fraction

40pi*(1/3)=

(40/3)*pi   or  (40*pi)/3

4 0
3 years ago
Every economic decision has only positive benefits. gained opportunities. unavoidable limitations. a consequence or tradeoff.
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Every economic decision has "a consequence or tradeoff" - this final answer choice is correct. Every time that an individual, business, or institution makes an economic decision, they always forgo an opportunity to use the same capital or resources for other endeavors. As such, there is a tradeoff incurred by not making the decision to use the resource in another manner. This is known as opportunity cost and is one of the fundamental tenets of economic theory.
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4 years ago
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What are the approximate solutions of 2x^2 + x = 14, rounded to the nearest hundredth?
Slav-nsk [51]
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7 0
3 years ago
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Answer:

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Step-by-step explanation:

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fill it in with the coordinates (0,-4)

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4 0
3 years ago
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Sergeeva-Olga [200]

Answer:

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